-LUFA_VERSION_NUM = $(shell grep LUFA_VERSION_STRING Version.h | cut -d'"' -f2)
-EXCLUDE_FROM_EXPORT = Documentation DoxygenPages CodeTemplates Build *.conf *.tar *.o *.lss *.lst *.hex *.elf *.bin
-DOXYGEN_OVERRIDE_PARAMS = PROJECT_NUMBER=$(LUFA_VERSION_NUM)
+LUFA_VERSION_NUM := $(shell grep LUFA_VERSION_STRING Version.h | cut -d'"' -f2)
+EXCLUDE_FROM_EXPORT := Documentation DoxygenPages CodeTemplates Build *.conf *.tar *.o *.d *.lss *.lst *.hex *.elf *.hex *.eep *.map *.bin